Help Please!
He's a sponsor and the resident Procharger guru. He can give you advice and he can get you the belt/parts for a fair $ amount. ~Joshua
Bob can hook you up with a new idler pulley, thats a normal thing to happen, he can also get you a regular 3.2 pulley from ATI - may work OK for you if you dont want to spend the 200 on the ultragrip.
The MMS crank pulley is probably the best way to go for the six rib, to add more boost. Here is a link to one that was for sale some time ago.
https://ls1tech.com/forums/showthrea...Charger+pulley
If you place a post in the wanted section, you can probably come up with one. I went from 7 psi to 14 psi of boost with this crank pulley, with a 4.00" pulley on the blower. This will give you much better belt wrap which will reduce belt slippage. Bob
The MMS will work OK but you still will go through idler pulleys.
make sure and pin the crank no matter what you do.
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I'm not real familair wit the 6 rib SDCE, I imagine its cheaper then the 8 rib because it uses the stock procharger crank pulley. I dont see getting 9-10psi being a problem at all with the SDCE 6 rib, I got nearly that much with the stock tensioner and the RR 3.2 pulley. Another added benefit of the SDCE is it will really cut down the blower rattle at idle.
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It will take a little playing with but you should get close to 500rwhp with headers, good tune and 8-9psi. Always a good idea to stock some LS6 valvesprings on the heads for a little insurance.

